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| Customization: | Available |
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| After-sales Service: | Yes |
| Warranty: | 1 Year |
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Unlock the power of ultrasonic technology. HHD series ultrasonic flow meters offer a smarter, more cost-effective way to measure liquid flow without interrupting your production. Using advanced transit-time technology, these meters provide high-precision readings from outside the pipe-meaning zero pressure drop, zero contamination, and zero downtime.
One Technology, Three Flexible Solutions:
Wall-Mounted Type (Fixed Installation):
Designed for long-term, 24/7 continuous monitoring.
Rich output interfaces (4-20mA, Modbus, OCT) for seamless PLC/SCADA integration.
IP67 ruggedized housing for harsh industrial environments.
Portable Type (The Mobile Auditor):
Built-in high-capacity rechargeable battery (up to 12 hours).
Integrated SD card data logger for on-site energy audits and flow verification.
Comes in a heavy-duty protective carrying case.
Handheld Type (Quick Spot Checks):
Ultra-compact and lightweight design for one-handed operation.
Instant flow readings within seconds-ideal for quick site surveys and troubleshooting.
User-friendly interface with multi-language support.
Water & Wastewater Management: Monitoring flow in large municipal pipes without stopping the water supply.
HVAC Energy Audits: Measuring chilled water and heating systems for efficiency calculation.
Industrial Cooling Systems: Verifying flow rates in air compressor cooling loops.
Chemical & Pharma: Measuring ultra-pure or corrosive liquids without risk of contamination.
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Measurement accuracy
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1.5%
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Repeatability
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0.2%
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Flow rate range
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Below DN200 (inclusive)0.3-4mS; above DN200 0.3-6m/s
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Measurement principle
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Principle of ultrasonic propagation time difference, dual CPUs working inparallel, 4-byte foating point operation
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Measurement period
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500mS (2 times per second)
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Working power supply
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Isolated DC8-36V orAC85-264V
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Signal input
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3 channels of 4-20mA analog input, which can input pressure, liquid level temperature and other signals, 2 channels of three-wire
platinum resistors |
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Signal output
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1 isolated RS485 output, 1 isolated 4 20mA or 0 20mA output (active olpassive optional)
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Optional HART protocol; dual isolated OCT outputs
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1 bidirectional serial interface, universal interface for peripheras, connects 4-20mA, frequency signals, thermal printers, data
loggers, etc. |
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Protocol
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Modbus RTU protocol
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Power dissipation
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Working current 50mA (when the keyboard is not connected and thebuzzer does not sound)
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Display
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2X 10 Chinese character backlight display (Chinese and English bilingual optional)
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Operate
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16-button or 4-button window operation
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Other functions
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Automatically memorizes the previous 512 days, the previous 128 months and the previous 10 years. The positive and negative net
accumulated flow rates can be automatically remembered for the previous 30 times. The power-on and power-off times and flow rates can be automatically or manually added, and can be read out through the Modbus protocol. |
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Sensor
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Extemal application, insertion and tube type
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Q: Are you trading company or manufacturer ?
A: We are a manufacturer, committed to producing high accuracy, long-term stability, cost-efficient pressure/ level/ temperature measuring instruments.
Q: What's your quality control system?
A: All of our products are completed with temperature compensation and 48 hours aging test before shipment. And all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you.
Q: What is the warranty of your products?
A: 1 years for level transmitter and pressure transmitter series others are 2 years from shipment date, for non-man-made damages.
Q: What is your shipping method?
A: Small orders are delivered with DHL, FedEx, TNT, UPS , EMS. Large orders are recommended to ship by sea.
Q: Do you provide samples ?
A: Yes,we have materials in stock to help you to get the samples as soon as we can.
Q: How long will you give me the reply?
A: We can support you 24Hours online service via email, skype, what'sapp, facebook etc within 1 hour.
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